It has been estimate that, at the current rate, male fertility caused by
Y-chromosome decay will decline to 1% of its present level within 5,000
generations - roughly 125,000 years. Not exactly the day after tomorrow -
but equally, not an unimaginably long time ahead. Unless something
changes in the way we breed, women will vanish too and Homo sapiens will
disappear in the next 1-200,000 years. But is extinction inevitable?